Posted on Monday, 15 February, 2010 | 25 comments| News tip by: Cetacea
Image credit: (Flickr) Zest-pk
Dolphins are often considered to be gentle, intelligent creatures but a series of porpoise killings has revealed their darker side.
Several cases involving porpoises being killed by dolphins have been catalogued and investigated in recent times. One theory is that the dolphins may have mistaken the porpoises for infantile dolphins - dolphins have been known to attack and kill their own young.
"They leap through hoops, communicate with clicks and are seen as among the most intelligent of animals."